Filter-press.



` .PATENTBD 'JUNE 2, 1903.

J. E L. STOVBKEN.

AFILTER PRESS.

APPLICATION FILED NOV. Z1, 1902.

No MoDL.

No. 729,304?. U

. Y PATBNTED JUNE 2, 1903. J. L L. STOVEKBN.

FILTER PRESS. ArPLoATmN HLEDNov. 21. 1902.

3 SHEETS-SHEET 2.

N0 MODEL.

Tn: anims PETERS coA vncrouwo.. wAsumsmN. o. c.

` No. 729,807'. PATENTED JUNE 2, 1903.

I J. & L. STOVEKEN.

` FILTER PRESS.

APPLIUATION FILED Nov. 21. 1902.

a SHEETS-SHEET s.

No MODEL.

STATES Patented June 2, 1903.

PTLELNT OFFICE.

.IOHN STOVEKEN, OF ORIPPLECREEK, AND LEO STOVEKEN, OF FLORENCE,

COLORADO. f

FILTERfPRESS.

SPECIFICATION forming part of Letters Patent No. 729,807, dated June 2, 190s. Application inea novemterzmeoz. serial No. 132,228. ditmaal.)

To ctZZ, whom t may concern,.-

Be it known that we, JOHN STOVEKEN, residing at Cripplecreek, in the county of Teller, and LEO S'rovEKEN, residing at Florence, in the county of Fremont, State of Colorado, citi- Zeus of the United States, have invented new and` useful Improvements in Filter-Presses, of which the following is a specification.

Ourinventionrelates to filter-presses-t`. e., apparatus for separating liquids from solids or semisolids; and it has for its object to provide a simple and inexpensive filter press adapted to be quickly and easily charged with substance to be filtered and as quickly and easily discharged of the residue subsequent to an Operation and one which is a more ehicient drier of material than filter-presses extant, and hence is well tted for use in localities where water is scarce. i

The invention will be fully understood from the following description and claims when taken in connection with the accompanying drawings, in which- Figure l is a vertical longitudinal central section of a filter-press constructed in accordance with our invention; Fig. 2, an enlarged detail perspective view, partly broken away, of one ofthe bags comprisedin the press; Fig. 3, a side elevation of the press; Fig. 4, a transverse section taken in the plane indicated by line l 4 of Fig. l Fig. 5, an end elevation of the press; Fig-,6, a detail horizontal section ,taken in the plane indicated -by the line 6 6 of Fig. l, and Fig. 7 a detail transverse section taken in the plane indicated by line '7 7 ofFig. l.` t

Similar letters of reference designate corresponding-parts in all of the several views of the drawings, referring to whicht A is the main frame of our improved filterpress, which is preferably of metal and has a head et at oneend; B, a cylinder ixed to the head o and providedwith means for admitting and` exhausting compressed air or other iiuidfpressure; C, Aa piston movable in the cylinder B and having a rod l); DD, four (more or less) foraminated plates, preferably of metahxedly connected to longitudinal bars c of the frame A; E E, four (more or less) foraminated plates, preferably of metal,

`mounted on the frame-bars@ andreach movl`able toward and from one of the fixed plates D; F F, bags of filter-cloth, canvas, or other suitable material, each of which is arranged between a fixed plateD and a complementary,

movable plate E and is provided atits lower end, Fig. 2, with a bail-shaped gate d, pref-- erably of metal, which is connectedto the .filter cloth Or canvas and is pivoted at its upper end to a bail-shaped frame e, also connected to the filter cloth'or canvas; G, alongitudiual conduit for the material to be filtered arranged above the bagsF; H H, hosepipes interposed between and connecting the bags F and the conduit G; I I, pinch-cocks fulcrumed atf adjacent to the hose-pipes and adapted to pinch the said pipes against sleeves or abutments grand thereby close the pipes and out off the supply of material to the bags 'F5 J, Figs. l, 3, and 5, alongitudinal eudwisemovable rod connected to the several cocks I and provided in Order to enable anattendant standing at one end of the apparatus to simultaneously open or close all of the cocks; K K,

`endwise-movable longitudinal bars disposed at opposite sides of the apparatus and conznected to the movable plates E; L, a crossbar connecting the .bars K and the rod b of piston C; M M,.endwisemovable longitudinal bars connected by pivoted links. h, Fig. 2, or other suitable means with the gates CZ of the several bags F and having racks t, and

ANa `transverse shaft journaled in suitable bearings adjacent to the plate a and having pinions j intermeshed with the racks i of bars M and also having a hand-wheel Zt.

The operation of our improved tiltenpress is as follows: The material to be filtered is supplied to the several bags F through the conduit G and the hose-pipes H and while IOC cated by arrow in Fig. l, when the material in the bags F will be subjected to pressure between the plates E and D and all of the liquids in the material will be separated from the solids and forced through the filter cloth or canvas of the bags. From this it follows that our improved machine is highly efiicient in recovering all of the liquid or solution from the material, and hence is adapted to be used to advantage in localities where water is not plentiful.

Subsequent to the described operation of Separating the liquid in the material from the solids the plates E are returned to the positions shown in Fig. l, preferably by letting Huid-pressure into the cylinder B, so as to move the piston C in the direction opposite lo that indicated by arrow, after which the bars M are moved, through the medium of the shaft N, in the direction opposite to that indicated by arrow to open the gates d ot the several bags l and effect the discharge of the solids or residue from said bags. With this done the gates (l are closed by moving the bars M in the direction indicated by arrow. 'lhe bar J is moved in the direction opposite to that indicated by arrow to reestablish communication between the conduit G and bags F and effect a refillingr of the latter, and the operation described is repeated.

It will he appreciated from the foregoing that the discharge ot' the solids or residue from the bags F and thesubsequent closing of the bags and restablishment of communication between the same and the conduit G cnt-ail but a minimum amount of delay and but little eit'ort on the part of the attendant, which is an important advantage.

We have entered into a detailed description of the construction and relative arrangement of the parts embodied in the present and preferred embodiment of our invention in order to impart a full, clear, and exact understanding of the same. We do not desire, however, to be understood as confiningourselves to such specific construction and arrangement of parts, as such changes or modiications may be made in practice as fairly fall wit-hin the scope of our invention as claimed.

Having described our invention, what we claim, and desire to secure by Letters Patent, 1s

l. In a ilter-press, the combination of a bag having an inletfor material to be pressed, and also having a discharge-gate, means for pressing the bag, and means for holding the gate closed while the bag is being pressed.

2. In a filter-press, the combination of a bag having a bail-shaped frame and a bail-shaped gate at its lower end; the gate being pivoted to' the frame, means for pressing the bag, and means for holding the gate closed While the bag is being pressed.

In a filter-press, the combination of a bag having agate at its lower end, a conduit connected with the upper portion of the bag, means for pressing the bag, means for closing the conduit while the bag is being pressed, and means for holding the gate closed during said pressing.

4. In a filter-press, the combination of abutments, means for moving one of the same, a bag interposed between said abutments, and having an inlet for material to be pressed, and alsohaving a discharge-gate at its lower end, and means for holding the gate closed while the bag is being pressed between the abntments.

5. In a filter-press, the combination of a fixed abutment, a movable abutment, means for moving the latter, a bag interposed be tween said abutments, and having a gate at its lower end, a conduit connected with the upper portion of the bag, means for closing said conduit while the bag is being pressed between the abutments, and means for holding the gate closed during said pressing.

6. In a filter-press, the combination of a fixed abutment, a movable abutment, means for moving the latter, a supply-conduit arranged above the abutment, a bag interposed between the abutments, and having a gate at its lower end, means for holding said gate closed while the bag is being pressed between the abutments, a hose-pipe interposed between the supply-conduit and the bag, and a pinch-cock arranged to engage said hose-pipe.

'7. In a 1ilter-press,the combination of a bag, connected with a source of material-supply, and having a discharge-opening, separate from said connection, and means for closing said opening, means for pressing the bag, and means for cont-rolling communication between the source of material-supply and the bag.

8. In a filter-press, the combination of a main frame, a foraminated plate fixed thereto, a foraminated plate movable in the frame toward and from the fixed plate, means for moving the movable plate, a bag interposed between the said plates, and having an opening at its lower' end, and `means for closing the same, a material-supply conduit disposed above the bag, a hose-pipe interposed between the supply-conduit and the bag, and means controlling said hose-pipe.

9. In a filter-press, the combination of a main frame, a plurality of plates ixed thereto, a plurality of complementary plates movable in the frame, bags interposed between the xed plates and the complementary movable plates, and means connected with the several movable plates foi-simultaneously moving the same.

10. In a filter-press, the combination of a main frame, a plurality of plates fixed thereto, a plurality of complementary plates movable in the frame, means for moving -the latter plates, bags interposed between the fixed plates and the complementary movable plates, and having gates at their lower ends, and means connected with said gates, whereby the lower ends of the several bags may be simultaneously opened and closed.

IIO

11. In -a filter-press, the combination of a main frame, a plurality of plates tiXed thereto, a plurality of complementary plates movable in the frame, bags interposed between the fixed plates and the complementary movable plates, and having gates at ltheir lower ends, means for simultaneously moving the movable plates toward and from the fixed plates, and means for simultaneously opening and closing the gates of the several bags.

12. In a .filter-press, the combination of a plurality of bags having gates atV their lower ends, means for pressing the said bags, and means connected with the gates of the several bags, whereby said gates may be simultaneously opened and closed.

13. In a filter-press, the combination of a material source of supply, a plurality of bags connected with said source of supply, and having gates-at their lower ends, means for simultaneously opening and closing communication between the source of supply and the bags, means for pressing the bags, and means connected with the gates of the bags, whereby said gates may be simultaneously opened and closed.

14. In a filter-press, the combination of a main frame, a plurality of plates fixed in the frame, a plurality of complementary plates Y movable in the frame, a cylinder adapted to be connected with a source of fluid-pressure supply, a piston movable in said cylinder, longitudinal bars connected to the several movable plates, a connection between said bars and the piston, and bags interposedV between the fixed plates and the movable plates;

each bag having an inlet for material to be pressed, and also having a discharge-opening, and means for closing said opening.

15. In a filter-press, the combination of a main frame, a material-supply conduit, a plurality of plates fixed in the frame, a plurality of complementary plates movable in the frame, a cylinder adapted to be connected with a source of fluid-pressure supply, a piston movable in said cylinder, longitudinal bars connected to the several movable plates, a cross-bar connecting said longitudinal bars and the piston, bags interposed between the fixed plates and the movable plates and having gates at their lower ends, longitudinal bars connected to said gates, and having racks, a shaft journaled in bearings on the frame, and having pinions intermeshed with said racks, hose-pipes connecting the supplyconduit and the bags, pinch-cocks for closing said hose-pipes, and an endwise-movable rod connected to the several pinch-cocks.

16. In a filterpress,rthe combination oli a bag having an inlet for material to be pressed, and also having a discharge-openingL and means for closing said opening, and means for pressing the bag.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

JOHN STOVEKEN. LEO STOVEKEN.

Witnesses:

I-I. J. RIDLE,

F. LUTEs. 

